164334534 has 192 divisors, whose sum is σ = 453519360. Its totient is φ = 39191040.

The previous prime is 164334497. The next prime is 164334551. The reversal of 164334534 is 435433461.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 164334495 and 164334504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2251122 + ... + 2251194.

It is an arithmetic number, because the mean of its divisors is an integer number (2362080).

Almost surely, 2^164334534 is an apocalyptic number.

164334534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 164334534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226759680).

164334534 is an abundant number, since it is smaller than the sum of its proper divisors (289184826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164334534 is a wasteful number, since it uses less digits than its factorization.

164334534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 148 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 164334534 is about 12819.3031791904. The cubic root of 164334534 is about 547.7422976253.

Adding to 164334534 its reverse (435433461), we get a palindrome (599767995).

The spelling of 164334534 in words is "one hundred sixty-four million, three hundred thirty-four thousand, five hundred thirty-four".